Category Archive

Below you'll find a list of all posts that have been categorized as “Equipment”

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GPS speed or dedicated speed sensor?

Rob Equipment

What we need when aero testing is reliable speed and power data. A speed sensor working properly will be more repeatable than speed derived from GPS data. The speed and distance recorded will also be more accurate if the wheel circumference is set-up correctly.

Clean sprockets and chain

The importance of a clean drive train

Rob Equipment

Grimy drive trains are sticky and they absorb power. Why waste power when you’ve invested in aero gains? So before every important event I remove the chain, the mech., and the cassette, and clean them all thoroughly. I clean the chain ring on the bike. I lubricate the mech on the work bench and then re-fit it …… ….. then …

Front end of P3 161006

Progression from CdA 0.2400 to CdA 0.1750

Rob Equipment

When I came back to time trialing in 2011 I was using an old low-end Pinarello road frame with a SRAM S60 front wheel and a FFWD disk. I’ve gain about 40 watts of FTP since then, but I’ve also gained about 65 virtual watts by reducing my CdA. I achieved my goals of under the hour for a 25TT …